package com.godofgamblers.hotelmanagementsystem.handler;

import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.godofgamblers.hotelmanagementsystem.pojo.User;
import com.godofgamblers.hotelmanagementsystem.service.UserService;
import com.godofgamblers.hotelmanagementsystem.util.AlipayConfig1;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * @author wzx
 * @date 2019/10/22 - 16:09
 */
@Controller
@RequestMapping("/addMoney")
public class AddMoneyHandler {
    private String total;
    private Integer user_id;
    private String user_wallet;
    @Resource
    private UserService userService;
    @RequestMapping("/pay")
    public void pay(HttpServletResponse response, String total_amount,Integer userid,String userwallet) throws Exception{
        System.out.println("执行支付");
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig1.gatewayUrl, AlipayConfig1.app_id, AlipayConfig1.merchant_private_key, "json", AlipayConfig1.charset, AlipayConfig1.alipay_public_key, AlipayConfig1.sign_type);
        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig1.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig1.notify_url);
        //商户订单号，商户网站订单系统中唯一订单号，必填
		/*String out_trade_no = new String(request.getParameter("WIDout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
		//付款金额，必填
		String total_amount = new String(request.getParameter("WIDtotal_amount").getBytes("ISO-8859-1"),"UTF-8");
		//订单名称，必填
		String subject = new String(request.getParameter("WIDsubject").getBytes("ISO-8859-1"),"UTF-8");
		//商品描述，可空
		String body = new String(request.getParameter("WIDbody").getBytes("ISO-8859-1"),"UTF-8");*/
        Long out_trade_no1 = new Date().getTime();

        //订单号
        String out_trade_no = out_trade_no1.toString();
        System.out.println(userid);
        System.out.println(userwallet);
        System.out.println(total_amount);
        total = total_amount;
        user_id = userid;
        user_wallet=userwallet;
        //付款金额

        //订单名称
        String subject = "蜗牛酒店财务部";

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        response.setContentType("text/html;charset=utf-8");
        //请求
        String result = alipayClient.pageExecute(alipayRequest).getBody();
        //输出
        response.getWriter().println(result);
    }

    @RequestMapping("/return_notify")
    public void return_notify( HttpServletRequest request,HttpServletResponse response) throws Exception{
        //异步通知
        System.out.println("执行异步通知");
        //获取支付宝POST过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig1.alipay_public_key, AlipayConfig1.charset, AlipayConfig1.sign_type); //调用SDK验证签名

        //——请在这里编写您的程序（以下代码仅作参考）——

			/* 实际验证过程建议商户务必添加以下校验：
			1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
			2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
			3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
			4、验证app_id是否为该商户本身。
			*/
        signVerified = true;
        System.out.println(signVerified);
        if(signVerified) {//验证成功
            //商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //交易状态
            String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");

            if(trade_status.equals("TRADE_FINISHED")){
                System.out.println("执行finished代码");
                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序
                //注意：
                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
            }else if (trade_status.equals("TRADE_SUCCESS")){
                System.out.println("执行success中代码");
                System.out.println(total);

                System.out.println(user_wallet);
                System.out.println(user_id);
                System.out.println("*********************");
                BigDecimal addMoney = new BigDecimal(total);
                //将用户的钱包余额增加金额
                User user = new User();
                user.setUser_wallet(new BigDecimal(user_wallet).add(addMoney));
                user.setUser_id(user_id);
                //修改数据库
                userService.updateUserWallet(user);




                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序
                //注意：
                //付款完成后，支付宝系统发送该交易状态通知
                //如果成功，将支付宝交易号和交易状态通过订单号码存在数据库表中去


            }
            response.getWriter().print("success");

        }else {//验证失败
            response.getWriter().print("fail");

            //调试用，写文本函数记录程序运行情况是否正常
            //String sWord = AlipaySignature.getSignCheckContentV1(params);
            //AlipayConfig.logResult(sWord);
        }

    }
    @RequestMapping("/return_url")
    public void return_url(HttpServletResponse response){
        System.out.println("执行同步通知");
        try {
            response.sendRedirect("/indexs");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
